Restoring using a different media server

We are migrating (via back up/ restore) large amounts of data (5TB) from "old fileserver/mediaserver" to "new filesever/media server.". The "old" media server is always selected to run the restore, causing the data to travel across the network. I set the Restore Failover on the master and change the media owner to the "new" media server yet the restore always runs on the "old" media server. The only way I can get it to work is the drop services on the "old" media server, but this is not always possible and pretty sure this isn't "working as designed!" Am I missing something obvious here? FYI... running NB 7.1.0.4.

Just changing the Media Host Override is all that was needed. I will change all media ownership once the old file server is retired. While I'm sure all responses are valid resolutions to my question, this was the simplest to implement. Thanks all for the prompt responses.